* pm-sleep:
  freezer: Fix typo in freezable_schedule_timeout() comment
  PM / s2idle: Clear the events_check_enabled flag
  PM / sleep: Remove pm_complete_with_resume_check()
  PM: ARM: locomo: Drop suspend and resume bus type callbacks
  PM: Use a more common logging style
  PM: Document rules on using pm_runtime_resume() in system suspend callbacks

* acpi-pm:
  ACPI / PM: Fix acpi_pm_notifier_lock vs flush_workqueue() deadlock
  ACPI / LPSS: Consolidate runtime PM and system sleep handling
  ACPI / PM: Combine device suspend routines
  ACPI / LPIT: Add Low Power Idle Table (LPIT) support
  ACPI / PM: Split code validating need for runtime resume in ->prepare()
  ACPI / PM: Restore acpi_subsys_complete()
  ACPI / PM: Combine two identical device resume routines
  ACPI / PM: Remove stale function header

* pm-cpufreq-sched:
  cpufreq: schedutil: Reset cached_raw_freq when not in sync with next_freq

* pm-opp:
  PM / OPP: Add dev_pm_opp_{un}register_get_pstate_helper()
  PM / OPP: Support updating performance state of device's power domain
  PM / OPP: add missing of_node_put() for of_get_cpu_node()
  PM / OPP: Rename dev_pm_opp_register_put_opp_helper()
  PM / OPP: Add missing of_node_put(np)
  PM / OPP: Move error message to debug level
  PM / OPP: Use snprintf() to avoid kasprintf() and kfree()
  PM / OPP: Move the OPP directory out of power/

* pm-cpufreq: (22 commits)
  cpufreq: stats: Handle the case when trans_table goes beyond PAGE_SIZE
  cpufreq: arm_big_little: make cpufreq_arm_bL_ops structures const
  cpufreq: arm_big_little: make function arguments and structure pointer const
  cpufreq: pxa: convert to clock API
  cpufreq: speedstep-lib: mark expected switch fall-through
  cpufreq: ti-cpufreq: add missing of_node_put()
  cpufreq: dt: Remove support for Exynos4212 SoCs
  cpufreq: imx6q: Move speed grading check to cpufreq driver
  cpufreq: ti-cpufreq: kfree opp_data when failure
  cpufreq: SPEAr: pr_err() strings should end with newlines
  cpufreq: powernow-k8: pr_err() strings should end with newlines
  cpufreq: dt-platdev: drop socionext,uniphier-ld6b from whitelist
  arm64: wire cpu-invariant accounting support up to the task scheduler
  arm64: wire frequency-invariant accounting support up to the task scheduler
  arm: wire cpu-invariant accounting support up to the task scheduler
  arm: wire frequency-invariant accounting support up to the task scheduler
  drivers base/arch_topology: allow inlining cpu-invariant accounting support
  drivers base/arch_topology: provide frequency-invariant accounting support
  cpufreq: dt: invoke frequency-invariance setter function
  cpufreq: arm_big_little: invoke frequency-invariance setter function
  ...

* pm-cpuidle:
  intel_idle: Graceful probe failure when MWAIT is disabled
  cpuidle: Avoid assignment in if () argument
  cpuidle: Clean up cpuidle_enable_device() error handling a bit
  cpuidle: ladder: Add per CPU PM QoS resume latency support
  ARM: cpuidle: Refactor rollback operations if init fails
  ARM: cpuidle: Correct driver unregistration if init fails
  intel_idle: replace conditionals with static_cpu_has(X86_FEATURE_ARAT)
  cpuidle: fix broadcast control when broadcast can not be entered

 Conflicts:
	drivers/idle/intel_idle.c

* pm-qos:
  PM / QoS: Fix device resume latency framework
  PM / QoS: Drop PM_QOS_FLAG_REMOTE_WAKEUP

* pm-domains:
  PM / Domains: Fix genpd to deal with drivers returning 1 from ->prepare()
  PM / domains: Rework governor code to be more consistent
  PM / Domains: Remove gpd_dev_ops.active_wakeup() callback
  soc: rockchip: power-domain: Use GENPD_FLAG_ACTIVE_WAKEUP
  soc: mediatek: Use GENPD_FLAG_ACTIVE_WAKEUP
  ARM: shmobile: pm-rmobile: Use GENPD_FLAG_ACTIVE_WAKEUP
  PM / Domains: Allow genpd users to specify default active wakeup behavior
  PM / Domains: Add support to select performance-state of domains
  PM / Domains: Rename genpd internals from pm_genpd_* to genpd_*

* pm-pci:
  PCI / PM: Add dev_dbg() to print device suspend power states
  PCI / PM: Do not resume any devices in pci_pm_prepare()

* pm-avs:
  PM / AVS: Use %pS printk format for direct addresses

* pm-docs:
  PM: docs: Fix formatting typo in devices.rst

When MWAIT is disabled, intel_idle refuses to probe.
But it may mis-lead the user by blaming this on the model number:

intel_idle: does not run on family 6 modesl 79

So defer the check for MWAIT until after the model# white-list check succeeds,
and if the MWAIT check fails, tell the user how to fix it:

intel_idle: Please enable MWAIT in BIOS SETUP
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

* pm-cpufreq-sched:
  cpufreq: schedutil: Examine the correct CPU when we update util

'cached_raw_freq' is used to get the next frequency quickly but should
always be in sync with sg_policy->next_freq. There is a case where it is
not and in such cases it should be reset to avoid switching to incorrect
frequencies.

Consider this case for example:

 - policy->cur is 1.2 GHz (Max)
 - New request comes for 780 MHz and we store that in cached_raw_freq.
 - Based on 780 MHz, we calculate the effective frequency as 800 MHz.
 - We then see the CPU wasn't idle recently and choose to keep the next
   freq as 1.2 GHz.
 - Now we have cached_raw_freq is 780 MHz and sg_policy->next_freq is
   1.2 GHz.
 - Now if the utilization doesn't change in then next request, then the
   next target frequency will still be 780 MHz and it will match with
   cached_raw_freq. But we will choose 1.2 GHz instead of 800 MHz here.

Fixes: b7eaf1aa (cpufreq: schedutil: Avoid reducing frequency of busy CPUs prematurely)
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: 4.12+ <stable@vger.kernel.org> # 4.12+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com>
Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Problem: This flag does not get cleared currently in the suspend or
resume path in the following cases:

 * In case some driver's suspend routine returns an error.
 * Successful s2idle case
 * etc?

Why is this a problem: What happens is that the next suspend attempt
could fail even though the user did not enable the flag by writing to
/sys/power/wakeup_count. This is 1 use case how the issue can be seen
(but similar use case with driver suspend failure can be thought of):

 1. Read /sys/power/wakeup_count
 2. echo count > /sys/power/wakeup_count
 3. echo freeze > /sys/power/wakeup_count
 4. Let the system suspend, and wakeup the system using some wake source
    that calls pm_wakeup_event() e.g. power button or something.
 5. Note that the combined wakeup count would be incremented due
    to the pm_wakeup_event() in the resume path.
 6. After resuming the events_check_enabled flag is still set.

At this point if the user attempts to freeze again (without writing to
/sys/power/wakeup_count), the suspend would fail even though there has
been no wake event since the past resume.

Address that by clearing the flag just before a resume is completed,
so that it is always cleared for the corner cases mentioned above.
Signed-off-by: Rajat Jain <rajatja@google.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

On platforms with large number of Pstates, the transition table, which
is a NxN matrix, can overflow beyond the PAGE_SIZE boundary.

This can be seen on POWER9 which has 100+ Pstates.

As a result, each time the trans_table is read for any of the CPUs, we
will get the following error.

---------------------------------------------------
fill_read_buffer: show+0x0/0xa0 returned bad count
---------------------------------------------------

This patch ensures that in case of an overflow, we print a warning
once in the dmesg and return FILE TOO LARGE error for this and all
subsequent accesses of trans_table.
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Make these const as they are only getting passed to the functions
bL_cpufreq_{register/unregister} having the arguments as const.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Make the arguments of functions bL_cpufreq_{register/unregister} as
const as the ops pointer does not modify the fields of the
cpufreq_arm_bL_ops structure it points to. The pointer arm_bL_ops is
also getting initialized with ops but the pointer does not modify the
fields. So, make the function argument and the structure pointer const.
Add const to function prototypes too.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Clean up cpuidle_enable_device() to avoid doing an assignment
in an expression evaluated as an argument of if (), which also
makes the code in question more readable.
Signed-off-by: Gaurav Jindal <gauravjindal1104@gmail.com>
[ rjw: Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Do not fetch per CPU drv if cpuidle_curr_governor is NULL
to avoid useless per CPU processing.
Signed-off-by: Gaurav Jindal <gauravjindal1104@gmail.com>
[ rjw: Subject & changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

acpi_remove_pm_notifier() ends up calling flush_workqueue() while
holding acpi_pm_notifier_lock, and that same lock is taken by
by the work via acpi_pm_notify_handler(). This can deadlock.

To fix the problem let's split the single lock into two: one to
protect the dev->wakeup between the work vs. add/remove, and
another one to handle notifier installation vs. removal.

After commit a1d14934 "workqueue/lockdep: 'Fix' flush_work()
annotation" I was able to kill the machine (Intel Braswell)
very easily with 'powertop --auto-tune', runtime suspending i915,
and trying to wake it up via the USB keyboard. The cases when
it didn't die are presumably explained by lockdep getting disabled
by something else (cpu hotplug locking issues usually).

Fortunately I still got a lockdep report over netconsole
(trickling in very slowly), even though the machine was
otherwise practically dead:

[  112.179806] ======================================================
[  114.670858] WARNING: possible circular locking dependency detected
[  117.155663] 4.13.0-rc6-bsw-bisect-00169-ga1d14934 #119 Not tainted
[  119.658101] ------------------------------------------------------
[  121.310242] xhci_hcd 0000:00:14.0: xHCI host not responding to stop endpoint command.
[  121.313294] xhci_hcd 0000:00:14.0: xHCI host controller not responding, assume dead
[  121.313346] xhci_hcd 0000:00:14.0: HC died; cleaning up
[  121.313485] usb 1-6: USB disconnect, device number 3
[  121.313501] usb 1-6.2: USB disconnect, device number 4
[  134.747383] kworker/0:2/47 is trying to acquire lock:
[  137.220790]  (acpi_pm_notifier_lock){+.+.}, at: [<ffffffff813cafdf>] acpi_pm_notify_handler+0x2f/0x80
[  139.721524]
[  139.721524] but task is already holding lock:
[  144.672922]  ((&dpc->work)){+.+.}, at: [<ffffffff8109ce90>] process_one_work+0x160/0x720
[  147.184450]
[  147.184450] which lock already depends on the new lock.
[  147.184450]
[  154.604711]
[  154.604711] the existing dependency chain (in reverse order) is:
[  159.447888]
[  159.447888] -> #2 ((&dpc->work)){+.+.}:
[  164.183486]        __lock_acquire+0x1255/0x13f0
[  166.504313]        lock_acquire+0xb5/0x210
[  168.778973]        process_one_work+0x1b9/0x720
[  171.030316]        worker_thread+0x4c/0x440
[  173.257184]        kthread+0x154/0x190
[  175.456143]        ret_from_fork+0x27/0x40
[  177.624348]
[  177.624348] -> #1 ("kacpi_notify"){+.+.}:
[  181.850351]        __lock_acquire+0x1255/0x13f0
[  183.941695]        lock_acquire+0xb5/0x210
[  186.046115]        flush_workqueue+0xdd/0x510
[  190.408153]        acpi_os_wait_events_complete+0x31/0x40
[  192.625303]        acpi_remove_notify_handler+0x133/0x188
[  194.820829]        acpi_remove_pm_notifier+0x56/0x90
[  196.989068]        acpi_dev_pm_detach+0x5f/0xa0
[  199.145866]        dev_pm_domain_detach+0x27/0x30
[  201.285614]        i2c_device_probe+0x100/0x210
[  203.411118]        driver_probe_device+0x23e/0x310
[  205.522425]        __driver_attach+0xa3/0xb0
[  207.634268]        bus_for_each_dev+0x69/0xa0
[  209.714797]        driver_attach+0x1e/0x20
[  211.778258]        bus_add_driver+0x1bc/0x230
[  213.837162]        driver_register+0x60/0xe0
[  215.868162]        i2c_register_driver+0x42/0x70
[  217.869551]        0xffffffffa0172017
[  219.863009]        do_one_initcall+0x45/0x170
[  221.843863]        do_init_module+0x5f/0x204
[  223.817915]        load_module+0x225b/0x29b0
[  225.757234]        SyS_finit_module+0xc6/0xd0
[  227.661851]        do_syscall_64+0x5c/0x120
[  229.536819]        return_from_SYSCALL_64+0x0/0x7a
[  231.392444]
[  231.392444] -> #0 (acpi_pm_notifier_lock){+.+.}:
[  235.124914]        check_prev_add+0x44e/0x8a0
[  237.024795]        __lock_acquire+0x1255/0x13f0
[  238.937351]        lock_acquire+0xb5/0x210
[  240.840799]        __mutex_lock+0x75/0x940
[  242.709517]        mutex_lock_nested+0x1c/0x20
[  244.551478]        acpi_pm_notify_handler+0x2f/0x80
[  246.382052]        acpi_ev_notify_dispatch+0x44/0x5c
[  248.194412]        acpi_os_execute_deferred+0x14/0x30
[  250.003925]        process_one_work+0x1ec/0x720
[  251.803191]        worker_thread+0x4c/0x440
[  253.605307]        kthread+0x154/0x190
[  255.387498]        ret_from_fork+0x27/0x40
[  257.153175]
[  257.153175] other info that might help us debug this:
[  257.153175]
[  262.324392] Chain exists of:
[  262.324392]   acpi_pm_notifier_lock --> "kacpi_notify" --> (&dpc->work)
[  262.324392]
[  267.391997]  Possible unsafe locking scenario:
[  267.391997]
[  270.758262]        CPU0                    CPU1
[  272.431713]        ----                    ----
[  274.060756]   lock((&dpc->work));
[  275.646532]                                lock("kacpi_notify");
[  277.260772]                                lock((&dpc->work));
[  278.839146]   lock(acpi_pm_notifier_lock);
[  280.391902]
[  280.391902]  *** DEADLOCK ***
[  280.391902]
[  284.986385] 2 locks held by kworker/0:2/47:
[  286.524895]  #0:  ("kacpi_notify"){+.+.}, at: [<ffffffff8109ce90>] process_one_work+0x160/0x720
[  288.112927]  #1:  ((&dpc->work)){+.+.}, at: [<ffffffff8109ce90>] process_one_work+0x160/0x720
[  289.727725]

Fixes: c072530f (ACPI / PM: Revork the handling of ACPI device wakeup notifications)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: 3.17+ <stable@vger.kernel.org> # 3.17+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

During system-wide PM, genpd relies on its PM callbacks to be invoked for
all its attached devices, as to deal with powering off/on the PM domain. In
other words, genpd is not compatible with the direct_complete path, if
executed by the PM core for any of its attached devices.

However, when genpd's ->prepare() callback invokes pm_generic_prepare(), it
does not take into account that it may return 1. Instead it treats that as
an error internally and expects the PM core to abort the prepare phase and
roll back. This leads to genpd not properly powering on/off the PM domain,
because its internal counters gets wrongly balanced.

To fix the behaviour, allow drivers to return 1 from their ->prepare()
callbacks, but let's return 0 from genpd's ->prepare() callback in such
case, as that prevents the PM core from running the direct_complete path
for the device.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Individual CPUs may have special requirements to not enter
deep idle states. For example, a CPU running real time
applications would not want to enter deep idle states to
avoid latency impacts. At the same time other CPUs that
do not have such a requirement could allow deep idle
states to save power.

This was already implemented in the menu governor.
Implementing similar changes in the ladder governor which
gets selected when CONFIG_NO_HZ and CONFIG_NO_HZ_IDLE are not
set. Refer following commits for the menu governor changes.
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

The special value of 0 for device resume latency PM QoS means
"no restriction", but there are two problems with that.

First, device resume latency PM QoS requests with 0 as the
value are always put in front of requests with positive
values in the priority lists used internally by the PM QoS
framework, causing 0 to be chosen as an effective constraint
value.  However, that 0 is then interpreted as "no restriction"
effectively overriding the other requests with specific
restrictions which is incorrect.

Second, the users of device resume latency PM QoS have no
way to specify that *any* resume latency at all should be
avoided, which is an artificial limitation in general.

To address these issues, modify device resume latency PM QoS to
use S32_MAX as the "no constraint" value and 0 as the "no
latency at all" one and rework its users (the cpuidle menu
governor, the genpd QoS governor and the runtime PM framework)
to follow these changes.

Also add a special "n/a" value to the corresponding user space I/F
to allow user space to indicate that it cannot accept any resume
latencies at all for the given device.

Fixes: 85dc0b8a (PM / QoS: Make it possible to expose PM QoS latency constraints)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=197323Reported-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Ramesh Thomas <ramesh.thomas@intel.com>

The genpd governor currently uses negative PM QoS values to indicate
the "no suspend" condition and 0 as "no restriction", but it doesn't
use them consistently.  Moreover, it tries to refresh QoS values for
already suspended devices in a quite questionable way.

For the above reasons, rework it to be a bit more consistent.

First off, note that dev_pm_qos_read_value() in
dev_update_qos_constraint() and __default_power_down_ok() is
evaluated for devices in suspend.  Moreover, that only happens if the
effective_constraint_ns value for them is negative (meaning "no
suspend").  It is not evaluated in any other cases, so effectively
the QoS values are only updated for devices in suspend that should
not have been suspended in the first place.  In all of the other
cases, the QoS values taken into account are the effective ones from
the time before the device has been suspended, so generally devices
need to be resumed and suspended again for new QoS values to take
effect anyway.  Thus evaluating dev_update_qos_constraint() in
those two places doesn't make sense at all, so drop it.

Second, initialize effective_constraint_ns to 0 ("no constraint")
rather than to (-1) ("no suspend"), which makes more sense in
general and in case effective_constraint_ns is never updated
(the device is in suspend all the time or it is never suspended)
it doesn't affect the device's parent and so on.

Finally, rework default_suspend_ok() to explicitly handle the
"no restriction" and "no suspend" special cases.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Ramesh Thomas <ramesh.thomas@intel.com>

There are no more users left of the gpd_dev_ops.active_wakeup()
callback.  All have been converted to GENPD_FLAG_ACTIVE_WAKEUP.
Hence remove the callback.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Set the newly introduced GENPD_FLAG_ACTIVE_WAKEUP, which allows to
remove the driver's own flag-based callback.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Set the newly introduced GENPD_FLAG_ACTIVE_WAKEUP, which allows to
remove the driver's own flag-based callback.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Set the newly introduced GENPD_FLAG_ACTIVE_WAKEUP, which allows to
remove the driver's own "always true" callback.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

It is quite common for PM Domains to require slave devices to be kept
active during system suspend if they are to be used as wakeup sources.
To enable this, currently each PM Domain or driver has to provide its
own gpd_dev_ops.active_wakeup() callback.

Introduce a new flag GENPD_FLAG_ACTIVE_WAKEUP to consolidate this.
If specified, all slave devices configured as wakeup sources will be
kept active during system suspend.

PM Domains that need more fine-grained controls, based on the slave
device, can still provide their own callbacks, as before.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

At least one Dell XPS13 9360 is reported to have serious issues with
the Low Power S0 Idle _DSM interface and since this machine model
generally can do ACPI S3 just fine, add a blacklist entry to disable
that interface for Dell XPS13 9360.

Fixes: 8110dd28 (ACPI / sleep: EC-based wakeup from suspend-to-idle on recent systems)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=196907Reported-by: Paul Menzel <pmenzel@molgen.mpg.de>
Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: 4.13+ <stable@vger.kernel.org> # 4.13+

Pull x86 fixes from Ingo Molnar:
 "Two fixes:

   - A PCID related revert that fixes power management and performance
     regressions.

   - The module loader robustization and sanity check commit is rather
     fresh, but it looked like a good idea to apply because of the
     hidden data corruption problem such invalid modules could cause"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/module: Detect and skip invalid relocations
  Revert "x86/mm: Stop calling leave_mm() in idle code"

Pull RAS fix from Ingo Molnar:
 "Fix an RCU warning that triggers when /dev/mcelog is used"

* 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mcelog: Get rid of RCU remnants

Pull perf fixes from Ingo Molnar:
 "Various fixes:

   - synchronize kernel and tooling headers

   - cgroup support fix

   - two tooling fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tools/headers: Synchronize kernel ABI headers
  perf/cgroup: Fix perf cgroup hierarchy support
  perf tools: Unwind properly location after REJECT
  perf symbols: Fix memory corruption because of zero length symbols

Pull irq fix from Ingo Molnar:
 "An irqchip driver init fix"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/irq-mvebu-gicp: Add missing spin_lock init

Pull core fixes from Ingo Molnar:

 - workaround for gcc asm handling

 - futex race fixes

 - objtool build warning fix

 - two watchdog fixes: a crash fix (revert) and a bug fix for
   /proc/sys/kernel/watchdog_thresh handling.

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Prevent GCC from merging annotate_unreachable(), take 2
  objtool: Resync objtool's instruction decoder source code copy with the kernel's latest version
  watchdog/hardlockup/perf: Use atomics to track in-use cpu counter
  watchdog/harclockup/perf: Revert a33d4484 ("watchdog/hardlockup/perf: Simplify deferred event destroy")
  futex: Fix more put_pi_state() vs. exit_pi_state_list() races

Merge tag 'enforcement-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull enforcement statement update from Greg KH:
 "Documentation: enforcement-statement: name updates

  Here are 12 patches for the kernel-enforcement-statement.rst file that
  add new names, fix the ordering of them, remove a duplicate, and
  remove some company markings that wished to be removed.

  All of these have passed the 0-day testing, even-though it is just a
  documentation file update :)"

* tag 'enforcement-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  Documentation: Add Frank Rowand to list of enforcement statement endorsers
  doc: add Willy Tarreau to the list of enforcement statement endorsers
  Documentation: Add Tim Bird to list of enforcement statement endorsers
  Documentation: Add my name to kernel enforcement statement
  Documentation: kernel-enforcement-statement.rst: proper sort names
  Documentation: Add Arm Ltd to kernel-enforcement-statement.rst
  Documentation: kernel-enforcement-statement.rst: Remove Red Hat markings
  Documentation: Add myself to the enforcement statement list
  Documentation: Sign kernel enforcement statement
  Add ack for Trond Myklebust to the enforcement statement
  Documentation: update kernel enforcement support list
  Documentation: add my name to supporters

There have been some cases where external tooling (e.g., kpatch-build)
creates a corrupt relocation which targets the wrong address.  This is a
silent failure which can corrupt memory in unexpected places.

On x86, the bytes of data being overwritten by relocations are always
initialized to zero beforehand.  Use that knowledge to add sanity checks
to detect such cases before they corrupt memory.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: jeyu@kernel.org
Cc: live-patching@vger.kernel.org
Link: http://lkml.kernel.org/r/37450d6c6225e54db107fba447ce9e56e5f758e9.1509713553.git.jpoimboe@redhat.com
[ Restructured the messages, as it's unclear whether the relocation or the target is corrupted. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>

Pull ARM fixes from Russell King:

 - omit EFI memory map sorting, which was recently introduced, but
   caused problems with the decompressor due to additional sections
   being emitted.

 - avoid unaligned load fault-generating instructions in the
   decompressor by switching to a private unaligned implementation.

 - add a symbol into the decompressor to further debug non-boot
   situations (ld's documentation is extremely poor for how "." works,
   ld doesn't seem to follow its own documentation!)

 - parse endian information to sparse

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: add debug ".edata_real" symbol
  ARM: 8716/1: pass endianness info to sparse
  efi/libstub: arm: omit sorting of the UEFI memory map
  ARM: 8715/1: add a private asm/unaligned.h